MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS upload directories. These links likely serve to redirect users to malicious content or phishing sites, a common tactic for initial access via spearphishing attachments.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://prana.video/wp-content/plugins/super-forms/uploads/php/files/epq02tqf2imhg463a3kvhqlnb3/vagosurupasa.pdf In PDF document text
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/80a4a68ea73ae7992699d60aad029ed7/75593044156.pdfIn PDF document text
- http://veiligheidssloten.nl/ckfinder/userfiles/files/12184718634.pdfIn PDF document text
- https://nevisnews.com/userfiles/50520733122.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/tofoxokixanofuxaxalok.pdfIn PDF document text
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/5f6d88bce205201041cf8419fbfa911c/95174975389.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16107cfd0625d0---87478635730.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cbae808dce---mabirurabumu.pdfIn PDF document text
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/ppnieor5keu0b0c8q3blpb0270/midirurulir.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/afa43494ad12a01a451fb82667986692/30860429460.pdfIn PDF document text
- http://ozdoby-betonowe21.pl/Upload/file/46386755438.pdfIn PDF document text
- http://smartdeal.pl/files/upload/files/44853603772.pdfIn PDF document text
- https://mintowncoffee.net/uploads/images/files/bitun.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160788cd849080---dejowinetesakaweluxanuket.pdfIn PDF document text
- https://maryamghiasi.com/images/upload/files/65102463995.pdfIn PDF document text
- http://hyundainhapkhau.net/upload/files/zafolezezoge.pdfIn PDF document text
- https://pasarantogel.com/contents//files/xafufuruzabeseseba.pdfIn PDF document text
- https://masihpt2.com/contents/files/kularitalikuwinosujijej.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16099d74f968ec---68130056430.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/ebda5fd295dbf568f8ab2bd155b69c3c/lamuxokopiwawapobojuw.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///fudam.pdfIn PDF document text
- https://777mto.info/contents/files/2429336767.pdfIn PDF document text
- http://yournamebadges.com/withyourdog/cms_uploads/file/suxepijot.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/e303f0f3c9472f73ee8ad36bb5698f77/zikijodenoxosamasugevetub.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/gubonopurizotiloromawazo.pdfIn PDF document text
- http://xinyuemu.net/assets/202106/files/20210604042533959696.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=what+to+mix+acrylic+paint+onPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bf22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d739.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD739 | 10548 bytes |
SHA-256: f3edd53ea5851e99db2d99a7401a9074ba32885cc4994da366cf7c4558624cfb |
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font_02_sfnt_off0000ef17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF17 | 15144 bytes |
SHA-256: c8d41fb554bf10755b6f23cd633a89034936671731db479b802ac1245b95f05b |
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